Move blink scheduler implementation into a component

components/scheduler/child/webthread_impl_for_worker_scheduler_unittest.cc

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#include "content/child/scheduler/webthread_impl_for_worker_scheduler.h"
+#include "components/scheduler/child/webthread_impl_for_worker_scheduler.h"
 
 #include "base/synchronization/waitable_event.h"
-#include "content/child/scheduler/worker_scheduler_impl.h"
+#include "components/scheduler/child/worker_scheduler_impl.h"
 #include "testing/gmock/include/gmock/gmock.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #include "third_party/WebKit/public/platform/WebTraceLocation.h"
 
 using testing::_;
 using testing::AnyOf;
 using testing::ElementsAre;
 using testing::Invoke;
 
-namespace content {
+namespace scheduler {
 namespace {
 
 class NopTask : public blink::WebThread::Task {
  public:
   ~NopTask() override {}
 
   void run() {}
 };
 
 class MockTask : public blink::WebThread::Task {
@@ skipping 131 matching lines @@
                     base::Bind(&removeTaskObserver, thread_.get(), &observer));
 
   // We need to be careful what we test here.  We want to make sure the
   // observers are un in the expected order before and after the task.
   // Sometimes we get an internal scheduler task running before or after
   // TestTask as well. This is not a bug, and we need to make sure the test
   // doesn't fail when that happens.
   EXPECT_THAT(calls, testing::HasSubstr("willProcessTask run didProcessTask"));
 }
 
-}  // namespace content
+}  // namespace scheduler